Planing machinery.



PATENTED MAY 22, 1906.

J. R. THOMAS.

PLANING MACHINERY.

APPLICATION FILED MAR. 30. 1905.

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PLANING MACHINERY.

APPLICATION FILED MAR. 30. 1905.

3 SHEETS-SHEET 2 Mr'ms 55s I QM aw @W/ PATENTED MAY 22, 1906.

J. R. THOMAS.

PLANING MACHINERY APPLICATION FILED MAR. 30, 1905.

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MMMMW M UNTTED STATES PATENT ()FFTCE.

JOHN R. THOMAS, OF CINCINNATI, OHIO, ASSIGNOR TO J. A. FAY & EGANCOMPANY, OF CINCINNATI. OHIO, A CORPORATION OF WEST VIRGINIA.

PLANING MACHINERY.

Specification of Letters Patent.

Patented May 22, 1906.

1'0 all whom it may concern:

Be it known that 1, JOHN R. THOMAS, a citizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and useful Improvements in Planing Machinery,of which the following is a specification.

My invention relates to planing machinery including so-called woodplaning and matching machines, flooring-machines, moldingmachines, andthe like, and has for its object the providing of new and improvedyielding-pressure means for the stock being operated on by a sidecutterhead, which pressure means form a holddown device for the stockfor definitely positioning it for operation thereon by a sidecutter-head, while offering minimum resistance to the feed of saidstock; and my invention has for its further object the providing of anew and improved chip-breaker for a side cutter-head in such machinery.

My invention consists in providing a new and improved pressure mechanismhaving an idler-roll arranged to be swung out of the way and takingagainst the stock for positioning the stock for operation thereon by aside cutterhead; further, in providing a chipbreaker for a sidecutter-head which has a journal connection concentric to the rotary axisof the side cutter-head; further, in providing a contact-roll device forthe chip breaker having .actuating connection with the chip-breaker,whereby the chip-breaker is caused to recede by the receding movement ofthe contact-roll in such manner that the toe of said chip-breaker ismaintained laterally in similar relation to said roll, and the inventionwill be further readily understood from the following description andclaims, and from the drawings, in which Figure 1 represents a sideelevation of so much of a planing-machine as is necessary to illustratemy invention and having my improved device connected therewith. Fig. 2is a plan view of the same. Fig. 3 is a vertical cross-section of thesame, taken on the line 00 9c of Fig. 2. Fig. 4 is a sectional detail,partly broken away, taken on the line y g of Fig. 2; and Fig. 5 is adetail in side elevation of the bridge-support.

The machine-frame 1 has a cross-support 2, upon which side cutter-headhangers 3 4, also known as matcher-hangers, are adjusted sidewardly, asby means of adjustingscrews 5 6. The matcherhangers, respectively, haveside cutter-head spindles 7 8 journaled thereon in proper bearings, the

spindles carrying side cutterheads 9 10. The lower ends of thematc'henhangers and spindles are broken away and not shown be cause wellknown.

' Standards 11 12 project upwardly from the main frame and support acrossshaft 13 in bearings 14 15, the same being secured in place bymeans of a set-bolt 16. A bridge 17 has a bearing 18 about the crossshaft or rod 13, collars 19 20 being secured to the shaft by set-bolts21 22 to either side of the bearing 18 for positioning said bearinglongitudinally of the shaft-t. (5., transversely of the main frame-tocorrespond to the sidewise adjustment of the hanger 3. This shaft or rodmay be moved longitudinally for releasing the bridge from the machineand may be provided with a pull-handle 23, and the bridge may be swungupon its bearing 18 about the rod for swinging said bridge, the roll orrolls supported thereby, and the roll-slide upon which the latter aremounted in manner hereinafter described out of the way of the sidecutter-heads for permitting access to said side cutter-heads.

A roll-slide 26 slides in a guideway 27 on the bridge and is adjustableup and down thereon by a screw-rod 28, having threaded connection 29 ina lug 30 of the bridge and journal connection in a lug 31 of the slide,a hand-wheel 32, having spline connection 33 with said screw-rod, beingarranged to turn the screw-rod. The upper end of the screwrod is alsothreaded, as shown at 34, a nut 35 screwing thereon for adjusting aspring 36 (shown as a volute spring) taking about the screw-rod betweenthe lug 31 of the slide and a washer 37 taking against the handwheel, a

collar 38 being on the sccrw-rod for limiting the downward movement ofthe slide. The bridge may have a recess 39 for receiving the screwrod. Astud 41 is rigidly secured in a bearing 42 on the slide, as by beingthreaded thereto, and has a hanger 43 rigidly secured thereto at itsouter end, as by a set-bolt 44. A roll-stud 45 is rigidly secured to theslide, as by being threaded thereto, and has a support at its outer endin a bearing 46 on the hanger 43. The roll stud or shaft may support oneor more rolls 48, which may be con- I ICC veniently removed or replacedby releasing the set-bolt 44, whereby the hanger may be slid endwise andturned out of line with the rolls on the stud 45 for permittinginsertion, removal, or substitution of the pressure-rolls 48 or, as theymay be termed, pressureroll sections, said pressure-roll orroll-sections. being preferably idlers journaled on said stud. Theroll-sections are preferably narrow, and one or more roll-sections maybe employed on the stud, depending on the Width of pressure agency it isdesired to have, filling-upcollars 49 being employed to posi tion theroll-sections upon their stud.

The matcher-hanger 3 has a shelf 51 secured thereto, upon which there isan upward projection 52, to which an eyebol-t 53 is pivoted on apin-bolt 54. The bolt 53 is adapted to take through a slot 55 in thebridge, a nut 56 and washer 57 taking above the Walls of the slot aboutthe bolt for rigidly securing the bridge in position.

If it is desired to get at the'side heads or their chip-breaker or-atother parts of the machine obstructed by the pressure-roll device, thenut 56 is relieved and the bolt 53' swung out of itsv slot, whichpermits the bridge 17 to swing-upon its bearing about the shaft 13,thereby swinging the bridge, slide, and rolls clear and out of the wayof the matcherheads, their hangers, and chip-breakers. The deviceoccupies little longitudinal space the machine, it provides anoverhanging idler-roll pressure for/the stock at the matcherheads, it isfirm in construction and operation, provides strong pressure closelyadjacent the point at which the stock receives the pound ing of theknives of the side heads, and enables pressure-rolls of large diameterto be employed and offers minimum resistance to the feeding of thestock.

In machines of the character mentioned the right-hand matcher-head whenstanding facin the feeding-out end of the machine is usually thepositioned matcher-head, being positioned adjacent the point across themachine at which it is desired to have the stock travel, the left-handmatcher-head being adjusted for the width of the stock it isdesired to.cut. The matcher-head 9 is shown as the positioned matcher-head and thematcherhead 10 as the adjustable matcher-head. These matcher or cutterheads are shown as cutting opposite each other, and my improvedconstruction of holddow-n device permitsv this to be done, holding thestock down firmly to the bed without exerting undue resistance to thefeed of the stock and permitting stock having perfectly parallel sidesto be produced. The bridge 17 preferably spans the positionedmatcher-head, taking above the same. A rigid chip-breaker 58 is securedto the shelf 51 by means of bolts 59,

1 threaded to the shelf and taking through slots 60 in the rigidchip-breaker for permit-v ting its adjustment, a backing-bolt 61,threaded to the upward extension 52 of the shelf, taking against thechip-breaker for positioning the same, the stock taking against thechip-breaker 58 closely adjacent the pressure-rolls. A shaving-hood 62,secured to shelf 51 by bolts 62, may take over the side cutter-head. Therigid chip-breaker may form part of the side gage of the machine.

The adjustable match-hanger 4 has a shelf 63 rigidly secured thereto.The cutter-spindle 8 takes through this shelf. A swinging chip-breaker65 is journaled' about said spindle concentrically with the circle ofcut of its cutter-head. Thus the shelf is provided with an annularrabbet 66 and the swinging chip-breaker with an annular rabbet 67,forming a depending journal-piece 68. The walls of said rabbets areconcentric tothe circle of cut of the cutter-head and form a runway 69for antifriction-bal-ls 70-, disposed in the runway, thereby formingaroller-bearing upon which the chip-breaker swings concentrically to thecircle of out of its cutter-head. The ball beari-ng bears the weight ofthe chip-breaker; Suitable retaining-pieces 71 are secured to the end ofthe journal-piece on the swinging chipbreaker and take under the shelffor retaining the swinging chip-breaker-upon the shelf.

The swinging chip-breaker may be provided with a toe 72;, which ispreferably adjustable and separable. The toe is adjustable in a slot 73and retained in adjusted position by bolts 74. A bolt 76 screws into ahug 77' of the swinging chip-breakerand' takes against the shelf 63' forlimiting theinward movement of the chip-breaker toe. The contact-face 78of the-toe is preferably bevel-ed, so that the extreme outer ed e of thetoe may take lightly against the S'GOCTi throughout its, variousswinging positions.

A lever 81 has apart thereon adapted to be contacted by the stock and isarranged to cause receding of the swinging chip-breaker.

The lever 81 is pivoted ona bolt 82, secured to the shelf 63 and a roll83 is j'ournaled on a stud 84, secured in the swinging end of saidlever. The inner edge of the stock-contactingface of this roll ispreferably positioned at a slightly less distance from the longitudinalmiddle of the machine than the inner edge of the toe 72. Constructed inthis Way the roll bears the impact of the swinging chip-breaker againstthe stock, the roll in practice pressing slightly into the stock andpermitting the toe to bear lightly against the stock and perform itsoflice of breaking the chips relieved of the duty of primarily yieldingto inequalities in v I the stock. The roll forms a swinging movable heelfor the swinging chip-breaker whose Eivot is disconnected fromthe saidchipreaker. The roll 83' bears upon an inclined face 85 of the swingingchip-breaker. This inclined face merges into a stop 86, taking smile") I.3

against the rollwhen the parts are in normal position. A cable 87 issecured to the lug 77 on the swinging chip-breaker and takes over awheel 88 on a stud 89, secured to the shelf 63. The cable has a weight90 secured thereto. These parts act to normally press the roll 83 andthe toe 72 toward the stock for bearing against the latter and providethe necessary pressure against which the roll and toe yield toinequalities in the stock. The chip-breaker may be in the form of ashavinghood 91, having a cover 92 and a mouth 93. A projection 94 on theshelf 63 prevents the lever 81 overthrowing inwardly into the ma chine.The shelf 51 has a rabbet 95, in which is a support 96, and the shaft 63has a rabbet 97, in which is a support 98 for the stock assing through.the machine, the supports orming part of the table or bed of themachine.

The length of the contaet-roll lever, the location of its pivotal point,and the angle of the inclined face on the chip-breaker are relativelysuch as to cause the inner edge of the contact-face of the contact-rolland the inner edge of the chip-breaker to yield to equal extentthroughout the various degrees of yield to inequalities in the stock,thereby maintaining the inner faces of the movable heel and the toe ofthe chip-breaker in a plane substantially parallel with the direction offeed of the stock, the toe of the chip-breaker being maintained closelyadjacent and concentric to the circle of cut of the cutter-head, thecontact-roll device forming a friction-relieving member between thestock and chipbreaker.

The pivota l point of the lever is preferably located inwardly of aright line drawn between the rotary aXes of the cutter-spindle andcontact-roll and the inclined face is preferably at an angle to saidright line and the direction of projection of said lever.

My improved holddown device and chipbreaker, the means for causingprimary receding of the latter, and the relative disposition of the sameare peculiarly effective in operating on stock fed at a high rate ofspeed past the cutter-heads.

The side gage-piece 101 is adjustably secured to the shelf 51 by a bolt102, taking through a slot 103 in said side gage-piece and into saidshelf 51, a backing-bolt 10 1 being threaded into a lug 105 on the shelf51 and taking against the gage-piece for positioning the latter. Theguide-piece 106 is adjustably secured to the shelf 63 by a bolt 107,taking through a slot 108 in said guide-piece an into the shelf, abacking-bolt 109 being threaded into a lug 110 on the shelf 63 andtaking against the guide-piece.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

1.. In a planing-macnine, the combination with a side cutter-head, of aholddown device comprising a swinging bridge'extending longitudinally ofthe machine and arranged to swing away from the side cutter-head, aslide on said bridge intermediate of its ends, and a pressure-I ollmounted on said slide and adapted to take against the stock closelyadjacent to said side cutter-head.

2. In a planing-machine, the combination I with a side cutter-head, of aswinging bridge taking thereover, means for securing said bridge rigidlyin position, and an overhanging pressure-roll yieldably mounted on saidbridge.

3. In a planing-machine, the combination of a side cutter-head, aswinging bridge taking thereover, means for rigidly positioning saidbridge, a slide on said bridge, means for adjusting said slide up anddown, pressure means for said slide, and overhanging idler pressure-rollsections removably mounted on said slide, substantially as described.

4. In a planing-machine, the combination of oppositely-disposed sidecutterheads, a swinging pressure-frame, a slide on the pressureframe, anidler pressure-roll mounted on said slide, said roll arranged to takeagainst the stock between the said side cutter-heads, means foradjusting said slide up and down, a pressure means for said roll, andmeans per mitting said roll and frame to swing away from the said sidecutter-heads.

5. In a planing-machine, the combination with the frame, a pair ofstandards, a longitudinally-movable shaft, a bridge having a bearingtherefor about said shaft, said bridge swinging on said bearing, meansfor positioning said bridge longitudinally of said shaft, means forpositioning said bridge rigidly with relation to the frame, a slidehaving connec tion on the said bridge, means for adjusting said slide,pressure means for said slide, an overhanging stud on the said slide, abearing depending therefrom, a shaft mounted on said slide and in saidbearing, and pressureroll sections removably mounted about said shaft,said last-named bearing being releasable for permitting removal of saidroll-sections, substantially as described.

6. In a planing-machine, the combination with a side cutter-head, of aehip-breaker therefor, and roller-bearing for said chipbreaker takingconcentrically about the rotary axis of said side cutter-head.

7. In a planing-machine, the combination with a side cutter-head, of achip-breaker therefor, a rollei -bearing for said chip-breaker takingconcentrically about the rotary axis of said side cutter-head, saidchip-breaker having a toe and an inclined face, a lever, and acontact-roll for said lever taking against said inclined face, the inneredge of said roll maintained slightly nearer the longitudinal middle ofthe path of travel of stock through said machine than said toe,substantially as described.

8. In a planing-machine, the combination with a side cutter-head, of achip-breaker therefor, its toe, a lever having a pivot disconnected fromsaid chip-breaker, and a bearing part on said lever for stock, saidlever having a part thereon arranged to move the chip-breaker, andflexible pressure means for said chip-breaker, substantially as described.

9. .In a planing-machine, the combination with a side cutter-head, of achip-breaker, a bearing therefor concentric with relation to the rotaryaxis of said side cutter-head, and a contact lever for the stock, saidchip-breaker having an inclined face, a contact part on said levertaking against said inclined face, and pressure means acting on saidchip-breaker for urging the latter simultaneously against said contactpart and the stock, substantially as described 10. In a planing-machine,the combination; of a side cutter-head, a chip-breaker, a bearing forsaid chip-breaker concentric with relation to the rotary axis of saidside cutterhead, a lever having a pivot disconnected from: saidchip-breaker, said lever having a contact part thereon, the chip-breakerhaving an inclined face therefor, the pivot of said lever being out of aright line drawn from the rotary.

axis of said cutter-head to said contact part, and said inclined facebeing projected in a direction traversing said right line and thedirection of projection of said lever.

11. In a planing-machine, the combination of a side head-hanger, a sidecutter-head mandrel journaled thereon, a chip-breaker,

a bearing therefor concentric to said mandrel, a lever pivoted on saidhanger, said chipbreaker having an inclined face and said lever having acontact part taking against said inclined face for receding saidchip-breaker, and pressure means acting on said chipbreaker for urgingthe latter simultaneously against said contact part and the stock,substantially as described.

12. In a planing-machine, the combination of a side cutter-head hanger,means for adjusting the same transversely of the machine, a sidecutter-head spindle journaled in said hanger, a shelf for said hanger, ayielding chip-breaker, said chip-breaker having a stock-contacting toe,a bearing for said chip breaker taking concentrically about therotaryaxis of said side cutterhead spindle, a lever pivoted to said shelf, acontact-roll for stock thereon, said chipbreaker having an inclined facefor said roll, the pivotal point of said lever and the angle of inclineof said inclined face being relatively such as to maintain the inneredge of said contact-roll a slightly less distance from the longitudinalmiddle of stock passing through said machine than the stockcontactingface of said toe, substantially as described.

13. In a planing-machine, the combination of a side head-hanger, amandrel journaled thereon, a chip-breaker having roller bearing onthesaid hanger taking concentrically about said mandrel, saidchipebreaker having an inclined face and a stop at the outer end of saidinclined face, a lever pivoted on said hanger, a contact-roll mounted onthe swinging end of said lever, theoutward movesubstantiallysaidchip-breaker, the inner edge of said contact part being maintainedslightly nearer the longitudinal middle of the path of travel of saidstock, through said machine than said toe, substantially as described.

15. In a planing-machine, the combination of a side head-hanger, a sidecutter-head therefor, a chip-breaker for the latter, a concentricbearing for said chip-breaker taking concentrically about said spindle,a contact part for the stock taking against saidchipbreaker for movingall parts of said chipbreaker in concentric lines about the longitudinalaxis of said spindle, an adjustable toe for said chip-breaker, andpressure means for said chip-breaker acting against said contact partfor relieving said toe from pressure by the stock, substantially asdescribed.

16. In a planing-machine, the combination of a side cutter-head hanger,means for adjusting said hanger transversely of the machine, said hangerhaving a shelf, a side cutter-head for said hanger, a chip-breaker forsaid side cutter-head, a roller-bearing for said chip-breaker on saidshelf, said rollerbearing taking concentrically about the rotary axis ofsaid side cutter-head, and; a lever pivoted on said shelf and movingtherewith, said chip-breaker having aninclined face, and said leverhaving a contact part for said inclined face and for the stock passingthrough the machine for moving said chipbreaker, substantially asdescribed.

17. In a planing-machine, the combination of a side cutter-head hanger,a shelf therefor, a side cutter-head spindle journaled in said hanger, acutter-head therefor, a chip-breaker for said cutter-head, said shelfand said chip-breaker having annular rabbets, and antifriction-rollerparts. in said rabbets, said rabbets being concentric to the rotary axisof said side cutter-head spindle, substantially as. described.

'IIO

'18. In a planing-machine, the combination of a side cutter-head hanger,a shelf therefor, means for adjusting said hanger transversely of themachine, a side cutterhead spindle journaled in said hanger, a sidecutter-head for said spindle, a chip-breaker for said side cutter-head,said shelf having an annular rabbet 66, said chip-breaker having anannular rabbet 67 and a depending journal-piece 68, said rabbets beingconcentric to the circle of cut of said side outterhead and forming arunway 69 for antifriction-balls 70, and retaining means between saiddepending journal-piece and shelf, substantially as described.

19. In a planing-machine, the combination of a side cutter-head hanger,a side cutter-head spindle journaled thereon, a shelf on said hanger, ayielding chip-breaker having roller-bearing connection with said shelf,said roller-bearing being concentric of the rotary axis of said sidecutter-head spindle, a lever pivoted on said shelf, said chip-breakerhaving an inclined face, and a contact-roll on said lever havingengagement with said inclined face, the inner edge of said contactrollbeing maintained a slightly less distance from the longitudinal middleof stock passing through said machine than the toe of said chip-breakerthroughout the yielding movements of said chip-breaker, substantially asdescribed.

20. In a planing-machine, the combinaing witnesses.

tion of a side cutter-head hanger, means for adjusting the samevtransversely of the machine, a side cutter-head spindle journaled onsaid hanger, a shelf for said hanger, a yielding chip-breaker therefor,a bearing for said chip-breaker taking concentrically about the rotaryaxis of said side cutter-head spindle, a lever pivoted to said shelf,and a contact-roll for stock thereon, sai chipbreaker having an inclinedface merging into a stop for said roll, substantially as described.

21. In a planing-machine, the combination of a side cutter-head hanger,means for adjusting the same chine, a side cutter-head spindle journaledin said hanger, a shelf for said hanger, a yielding chip-breaker, abearing for said chip -breaker taking concentrically about the rotaryaxis of said side cutter-head spindle, a lever pivoted to said shelf, acontact-roll for stock thereon, said chip-breaker having an inclinedface merging into a stop for said roll, and a projection on said shelflimiting inward movement of said lever, substantially as described.

In testimony whereof I have signed my name hereto in the presence of twosubscrib- JOHN R. THOMAS.

Witnesses:

JOHN F. KRENKEL, ROY P. STEVENS.

transversely of the ma-.

